Robert wootton



(No Model.)

B. WOOTTON. MAGHINERY FOR MANUFACTURING SEAMLESS STEEL TUBES.

N0. 577,907. Patented Mar. 2, 1897 T ATENT Enron...

ROBERT WOOTTON, OF BIRMINGHAM, ENGLAND, ASSIGNOR TO THE BRITISH TUBE COMPANY, LIMITED, OF SMETHWIOK, ENGLAND.

MACHINERY FOR MANUFACTURING Sl-IAMLESS STEEL TUBES.

SPECIFICATION forming part of Letters Patent No. 577,907, dated March 2, 1897. Application filed January 20, 1896. Serial No. 576,188. (No model.) Patented in England March 15, 1895, No. 5,478.

To aZZ whom it may concern:

Be it known that I, ROBERT NVOOTTON, gentleman, a subject of the Queen of Great Britain, residing at 113 Harborne Road, Edgbaston, Birmingham, in the county of Warwick, England, have invented certain new and useful Improvements in Machinery for the Manufacture of Seamless Steel Tubes, of which the following is a specification.

This invention has been patented in England, No. 5,478, dated March 15, 1895.

My invention has for its object improvements in machinery for the manufacture of seamless steel tubes, and refers to the releasing of the tubes from the mandrels upon which they have been drawn; and it consists of various arrangements, as hereinafter described, for allowing the tube to be more readily inserted and removed from the machine and for so operating upon the tube that it can be quickly removed from the mandrel, and at the same time is not materially marked during its passage through the machine.

In order that my invention may be clearly understood and more easily carried into practice, I have appended hereunto a sheet of drawings upon which I have fully illustrated the nature of my said improvements, together with the mode of and means for carrying the same into effect.

Figure 1 is a cross-section through one of my machines. Fig. 2 is an elevation of the one side of same. Fig. 3 is a plan. Fig. 4 is an elevation of the other side. Fig. 5 is an elevation of the front or feeding end of the machine. Fig. 6 is a part section similar to Fig. 1, but showing a modification. Fig. 7 is an enlarged View of the bar 0. Fig. 8 is also an enlarged view showing a modification. Fig. 9 is a similar View to Fig. 7, showing a further modification.

In carrying my invention into effect I mount in a suitable frame two rolls B and B, the axis 12 and b of which are parallel in one plane, 2'. a, in this instance, as viewed in plan, Fig. 3, and at an inclination to each other in the reverse plane, as viewed in the side elevation, Fig. 2, the bar 0 being arranged intermediately between the two. The roll B is provided with only one operating-point, while that of B has threeviz. B, B and B The tube Z is fed into the triangular space formed between the said rolls and the bar, which creates a screwing action upon the tube and thus raises up the metal from the mandrel, at the same time tending to turn the tube on the mandrel and thereby release it. The rollers may be driven through any suitable me chanism, as toothed or worm gearing.

It is important that the tube Z should be capable of being quickly inserted in the machine and again removed after the tube has passed the bite of the rolls without waiting for the whole of the remaining part of the mandrel to pass through, to effect which I mount the roll B in the bearing-blocks a which are made to slide in the main frame A and are operated by the springs J, so as to keep the roll B normally up to its work; but for the insertion of the tag of the tube and the removal of the uncovered part of the mandrel the blocks a are drawn back, so as to compress the springs J, this being effected by means of the wedge h which forces out the strap or box H, the latter being connected by the rods h with the before-mentioned bearing-blocks a. The wedge is operated by the pose of adjusting the position of the roll for the accommodation of various-sized tubes the pins 6 are provided, which are provided with the screw-thread, the frame A being tapped to receive them, and are provided with the wor1n-gear E and c with connectionshaft e and square head 6 for attachment of handle, by which the roll B can be brought nearer to or farther from the center, as may be desired. To obtain the full pressure of the rolls B and B immediately the tag is inserted between them and before it reaches the point B of the roll, I may provide the rollers F and F, the position of the one F of which may be adjusted by the screw-pin f while that of F is actuated by the spring f through the projection f the roller being drawn back by the handle f for the insertion of the tube.

For forming a durable and wearing surface without marking the tube the bar 0 is formed trough shape, as shown, and is filled in With any suitable Wood C, the grains of which are arranged to run vertically, or in place of this I may cover the bar with leather or other suitable material c or instead of Wood I may use papier-mach or other suitable composition, or I may provide one or a series of balls 0 Which Would be mounted in the bar With a cover-plate 0 or they may simply fall into a long groove one against another.

Instead of moving the block a as hereinbefore described, I may move the bar for the insertion of the tag, in which case the bar 0 Would be mounted on a series of inclined planes M, which would be drawn up during operation upon the tube by the action of the Wedge m upon the strap m, the inclined planes being carried back when the Wedge is not in action by the spring m The Wedge may then be actuated by a lever m in a similar manner to that before described. I may vary the gearing and general details of the machine Without departing from my invention.

hat I claim, then, iS

1. In combination in a tube-forming machine, the pair of spindles b 1) arranged in parallel Vertical planes and at an angle to each other in the horizontal plane, a series of rollers on one shaft of substantially the same diameter relative to each other and a single roller on the other shaft arranged to coact With one of the series of rollers, and a bar 0 acting in conjunction With the single roller and With the series of rollers, substantially as described.

2. In combination with the pair of spindles and the rollers thereon for acting upon the tube, the supporting-bar 0 having a yielding Wearing-surface, substantially as described.

3. In combination with the pair of spindles and the rollers thereon for acting upon the tube, the supporting-bar 0 having a yielding Wearing-surface formed of Wood or like material, substantially as described.

In testimony that I claim the foregoing as my own I afiix my name in the presence of two Witnesses.

ROBT. IVOOTTON.

IVitnesses:

THOS. MEAnoWoRoFT, A. E. ()OKFORD. 

